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Code Golf · #28 · 2026-05-02

Is it a pangram?

Difficulty 2/3 · JavaScript

How to play

Write a JavaScript function body that passes all test cases using the fewest characters. Run against examples first, then submit for the full test suite. Eagle < Birdie < Par.

Given a string, return true if it contains every letter of the alphabet at least once (case-insensitive).

Examples

f("The quick brown fox jumps over the lazy dog") → true
f("Hello World") → false

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Your code (function body — receives input)

function(input) { 0 chars
}

Write the shortest JavaScript function body that passes all tests · Back to hub